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Komatsu 421-06-11940 Relay
Regular price $51.38 USDRegular priceSale price $51.38 USD -
Komatsu 421-43-22922 Switch
Regular price $398.31 USDRegular priceSale price $398.31 USD -
Komatsu 421-43-22920 Emergency Brake Switch
Regular price $398.31 USDRegular priceSale price $398.31 USD -
Komatsu 417-15-15160 Neutral Switch
Regular price $181.03 USDRegular priceSale price $181.03 USD -
Komatsu 417-15-15610 Neutral Switch
Regular price $191.78 USDRegular priceSale price $191.78 USD -
Komatsu 385-11092471 Switch
Regular price $30.10 USDRegular priceSale price $30.10 USD -
Komatsu 406-06-61130 Switch
Regular price $68.62 USDRegular priceSale price $68.62 USD -
Komatsu 3928161 Solenoid
Regular price $462.98 USDRegular priceSale price $462.98 USD -
Komatsu 385-10151921 Combination Lamp Switch
Regular price $76.50 USDRegular priceSale price $76.50 USD -
Komatsu 385-10264121 Starter Switch
Regular price $14.48 USDRegular priceSale price $14.48 USD -
Komatsu 307-43-11350 Switch
Regular price $9.10 USDRegular priceSale price $9.10 USD -
Komatsu 2G90W8995 Switch, Combination Lamp
Regular price $74.75 USDRegular priceSale price $74.75 USD -
Komatsu 385-10139741 Switch
Regular price $53.29 USDRegular priceSale price $53.29 USD -
Komatsu 380-886604-3 Starter Switch
Regular price $14.48 USDRegular priceSale price $14.48 USD -
Komatsu 2G84W96A Switch, Magnet
Regular price $34.85 USDRegular priceSale price $34.85 USD -
Komatsu 380-886604-2 Starter Switch
Regular price $14.48 USDRegular priceSale price $14.48 USD -
Komatsu 381-985789-1 Combination Lamp Switch
Regular price $76.50 USDRegular priceSale price $76.50 USD -
Komatsu 381-897251-1 Switch
Regular price $53.29 USDRegular priceSale price $53.29 USD -
Komatsu 381-897252-1 Combination Lamp Switch
Regular price $76.50 USDRegular priceSale price $76.50 USD -
Komatsu 380-886604-1 Starter Switch
Regular price $14.48 USDRegular priceSale price $14.48 USD
Collection: KOMATSU ELECTRICAL SYSTEM
At WQParts, we know electrical problems are some of the most frustrating issues in the field—intermittent faults, no-starts, warning codes, and downtime that’s hard to diagnose. Our Komatsu electrical system parts are built to eliminate that uncertainty, delivering consistent power, clean signals, and dependable operation in real working conditions.
We offer premium-quality alternators, starters, wiring harnesses, sensors, switches, relays, controllers, and electrical accessories engineered to meet or exceed OEM specifications. Each component is designed for precise fit and resistance to vibration, heat, moisture, and contamination—because heavy equipment doesn’t operate in clean environments.
The result is reliable starting, accurate system feedback, and stable machine performance you can trust shift after shift. Whether you’re troubleshooting a fault or rebuilding a machine from the ground up, WQParts Komatsu electrical components help keep your equipment running smoothly and your operators productive.
WQParts Komatsu electrical system parts — dependable power, clear signals, and fewer surprises.